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18932854416100 = 2252192229012
BaseRepresentation
bin1000100111000001001100…
…00011111110001011100100
32111000222000011210000001221
410103200212003332023210
54440143441212303400
6104133344440430124
73662565532151002
oct423404603761344
974028004700057
1018932854416100
11603a418815149
122159392778344
13a7448c071281
144964d8349a72
1522c7488e6c1a
hex1138260fe2e4

18932854416100 has 81 divisors (see below), whose sum is σ = 43362325727931. Its totient is φ = 7174242072000.

The previous prime is 18932854416097. The next prime is 18932854416101. The reversal of 18932854416100 is 161445823981.

The square root of 18932854416100 is 4351190.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 4 ways, for example, as 4532104507876 + 14400749908224 = 2128874^2 + 3794832^2 .

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (18932854416101) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 826714650 + ... + 826737550.

Almost surely, 218932854416100 is an apocalyptic number.

18932854416100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

18932854416100 is the 4351190-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 18932854416100

18932854416100 is an abundant number, since it is smaller than the sum of its proper divisors (24429471311831).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

18932854416100 is an frugal number, since it uses more digits than its factorization.

18932854416100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45854 (or 22927 counting only the distinct ones).

The product of its (nonzero) digits is 1658880, while the sum is 52.

The spelling of 18932854416100 in words is "eighteen trillion, nine hundred thirty-two billion, eight hundred fifty-four million, four hundred sixteen thousand, one hundred".

Divisors: 1 2 4 5 10 19 20 25 38 50 76 95 100 190 361 380 475 722 950 1444 1805 1900 3610 7220 9025 18050 22901 36100 45802 91604 114505 229010 435119 458020 572525 870238 1145050 1740476 2175595 2290100 4351190 8267261 8702380 10877975 16534522 21755950 33069044 41336305 43511900 82672610 165345220 206681525 413363050 524455801 826726100 1048911602 2097823204 2622279005 5244558010 9964660219 10489116020 13111395025 19929320438 26222790050 39858640876 49823301095 52445580100 99646602190 189328544161 199293204380 249116505475 378657088322 498233010950 757314176644 946642720805 996466021900 1893285441610 3786570883220 4733213604025 9466427208050 18932854416100